Power-tamp.



D. L. SAUERHERING.

POWER TAMP.

APPLICATION FILED Au.28. 19H5.

Patented Aug. 7, 1917.

2 SHKETS-SHEEI' 2.

@mirc/leon DOUGLAS L. SAUERHEBING', 0F WAUSAU, WISCONSIN.

POWER-TAM?.

Specification of Letters Patent.

Patented Ang. *7, 1917.

Application Ied August 28, 1916; VSerial No. 117.294.

To all `whom z't may concern.'

Be it known that l, DOUGLAS L. SAUER- HERING, a citizen of the United States, residing at Wausau, in the county of Marathon and State ot' W'isconsin, have invented certain new and useful Improvements in Power-Tamps; and I do declare the following to be a full, clear, and exact description pneumatic conveyer, although it will be understood that the device can Well be used for other purposes, such as for packing roadways, tennis courts, etc. Y

With the foregoing in View, the invention resides in certain novel features of construction and in unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application and .in which:

Figure 1 is a vertical section of a silo showing the device suspended for operation therein;

Fig. 2 is an enlarged side elevation of the machine;

Fig. 3 is a. top plan view thereof;

Fig. 4 is an end elevation;

Fig. 5 is a vertical transverse section taken on the plane of the line 5 5 of Fig. 2.

Throughout the several views of the drawings above brieHy described, similar characters designate corresponding parts. A"The numeral 1 has reference to a rectangular frame disposed in a 'horizontal plane, said frame having bearings 2 on its opposite ends in which a central shaft Vgris revolnblyVVV mounted, said shaft being driven from an electric motor 4 which is mounted on the frame. Motion may be imparted to the shaft 3 in one direction by means of intermeshing gears 5 on said shaft and the shaft of the motor, when a clutch member (i is moved in one direction by means of a hand lever 7, or when said member .is shifted in the opposite direction, the direction of rotation of the shaft 3 will be reversed since it is then driven by means of sprockets 8 and a sprocket chain 9. The frame 1 is provided with a U-shaped handle 10 to be grasped by the operator` in the manner hereinafter explained.

U-shaped hangers 11 are secured at their upper ends to the ends of the frame 1 and at their lower ends are provided with vertlically adjustable shoes 12 adapted to travel over the ensilage bei-ng packed. A crank shaft 13 is revolubly mounted in suitable bearings carried by the lower ends of the hangers 11, said shaft being driven from the shaft 3 by means of sprockets 14 and a chain 15, said shaft 13 preferably rotating at onedialf the speed of the shaft 3.

Two or more tamp bars 16 have bearings near their lower ends mounted on the opposed cranks 17 of shaft 13 and the upper ends of said bars are formed with longitudinal slots 18 through which the shaft 3 passes, collars 19 being secured on said shaft 3 adj acent the opposite sides of the bars 16 to guide the latter in their vertical movements. The lower ends oi the bars 16 are provided with fiat tamping feet 20 preferably pivoted thereto.

A disk or the like 21 is secured on one end of the shaft 3 and said disk carries a wrist pin 22 thus forming in effect a'crank or eccentric, said pin being passed through the upper end of a link 23 whose lower end is pivoted to a-vertical tamp bar 2-1 mounted slidably in a guide 25 securedl to one of the hangers 11. The lower cud of the bar 21 is provided with a camping foot/2G preferably of less size than the feet 20 but mounted in the same manner.

A bail 2T is pivotally connected with and rises from the frame 1, it being to this bail that the lower end of a suspending cable 28 is secured. Then thc machine is to be used in a. silo, the cable 28 is passed over pulleys 29 and 30 secured in the upper end thereof and is provided on its free end with a weight 31 disposed on the exterior of the silo, said weight approximately balancing the machine so that it will be sustained in a vertical position but may be moved in any required manner over the ensilage being packed. A hood 32 is b v preference secured on the cable 2S above the machine so that the operator who grasps the handle 10 to manipulate the machine will be shielded from the falling ensilage conveyed to the upper end of the silo by the usual pneumatic or other type of conveyer. This type of conveyer will in most cases be provided with an electric generator for supplying current to the motor el, this current being led through suitable wires.

The motor 4 is made to drive the shaft 3 in one direction or the other by proper manipulation of the lever 7 and said shaft in turn impartsrotary motion to the crank shaft 13. The throw of the cranks 17 now causes the bars 16 and the feet 20 thereof to reciprocate and at the same time oscillate and this motion causes the entire machine to move over the surface being tamped, the operation being very similar to that of a person walking. The feet 20 thus effectively pack the material and all that is required of the operator is that he guide the machine since it will feed itself forwardly or rearwardly according to the position of the lever 7, the foot 26 being adapted to pack the material along the wall of the silo which is not accessible to the other feet.

I claim 1. A power tamp comprising a frame, a plurality of tamping members carried thereby and means for moving said members upwardly and downwardly and at the same time forwardly and rearwardly in respect to the frame, whereby the machine is caused to travel over the material being tamped.

2. A power tamp comprising a plurality of vertically disposed tamping bars mounted adjacent their upper ends for simultaneous reciprocation and oscillation, and means for reciprocating said bars vertically and at the same time oscillating them to more the lower ends thereof forwardly and rearwardly.

3. A power tamp comprising a plurality of vertically disposed tamping bars mounted adjacent their upper ends for simulta neous reciprocation and oscillation, said bars having bearings, and a driving shaft having cranks mounted in said bearings to reciprocate and at the same time oscillate said bars to move their lower ends forwardly and rearwardly.

4. A power tamp comprising upper and lower shafts, the latter having cranks and the upper having collars disposed in vertical alinement with said cranks, means for driving the lower shaft, and a plurality of tamp bars having slotted upper ends through which the upper shaft passes and against which the collars bear, said bars also having bearings receiving the cranks of the lower shaft.

5. A power tamp comprising upper and lower shafts, the lower shaft having cranks and the upper one having collars disposed in vertical alinement with said cranks, means for driving the two shafts, a plurality of tamp bars having slotted upper ends through which the upper shaft passes and against which the collars thereof bear, said bars also having bearings receiving the cranks of the lower shaft, another crank on one end of the upper shaft, and an additional tamp bar having connection with said crank.

6. A power tamp comprising a horizorb, tally disposed rectangular frame, a pair of U-shaped hangers depending from the ends of said frame and having bearings at their lower ends. a driven shaft rotatably mounted in said bearings and having cranks, a plurality of vertically disposed tamp bars having bearings receiving said cranks, and means for guiding the upper ends of said bars.

7. A power tamp comprising a horizontally disposed' rectangular frame, a pair of U-shaped hangers depending from the ends thereof and having bearings at their lower ends. a shaft rotatably mounted in said bearings and having cranks, another shaft rotatably mounted on the frame and having a crank at one end, means for driving the two cranks. a plurality of vertically disposed tamping bars having bearings receiving the cranks of the first named shaft, Said liars also having slots through which the second shaft passes. and an additional talnp har having connection with the crank of the last named shaft.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DOUGLAS L. SAUERHERING.

Witnesses:

C. R. WILLIAMS, F. P. REGNER.

Genies of this patent may be obtained for ve cents each, by addressing the Commissioner of Yatents. Washington, D. C. 

